Question

Yes or No?

1) When a variable is declared in a program, the memory is allocated immediately for the variable?

2) If a class does not define a default constructor, the compiler will always provide a default constructor?

3) If a class does not define a copy constructor, the compiler will always provide a copy constructor?

4) A constructor can be used as a type conversion function only if it has exactly one parameter?

5) Only operators provided by C++ can be overloaded. Operator overloading cannot create new operators?

Answer 1

Answer:
1. The correct answer is YES
When the variable is declared, the memory will be allotted to that variable immediately.

2. The correct answer is YES
When there are no user-declared constructors available, the compiler will create a default constructor.

3. The correct answer is YES
When there are no copy constructors declared by the user, The compiler will always create one.

4. The correct answer is NO
Constructors are used to declaring the class variables and not for the Type conversions.

5. The correct answer is YES
Only a few operators can be overloaded and these overloaded operators are not the newly created ones.

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